A prospective study of giardiasis and water supplies in Colorado.
Author(s) -
S C Lapham,
Richard S. Hopkins,
Mary C. White,
Jeffrey Blair,
Richard A. Bissell,
G L Simpson
Publication year - 1987
Publication title -
american journal of public health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.284
H-Index - 264
eISSN - 1541-0048
pISSN - 0090-0036
DOI - 10.2105/ajph.77.3.354
Subject(s) - giardia , outbreak , giardia lamblia , protozoal disease , prospective cohort study , environmental health , medicine , veterinary medicine , surgery , virology , pathology , malaria
A prospective study of 484 visitors to Vail and Aspen/Snowmass, Colorado, was conducted to determine the risk of acquiring giardiasis. Of the 259 visitors to Vail, no cases of giardiasis were confirmed and only one of 12 water filtrates were positive for Giardia cysts. Of 225 visitors to Aspen/Snowmass two cases of giardiasis were confirmed and 12 of 20 water filtrates were positive for Giardia cysts. The regular occurrence of Giardia cysts in Aspen and Snowmass water was associated with lower rates of giardiasis acquisition than reported during outbreaks of waterborne giardiasis.
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